If you have a stuffy or runny nose, sinus headaches or congestion that doesn’t seem to clear up, you might think that allergies or a long-lasting infection are causing your symptoms.
But there’s another common cause for symptoms like these and it’s often overlooked. It’s called chronic non-allergic rhinosinusitis and it can look and feel like allergies.
Eugene Chang, MD, a sinus surgeon with Banner - University Medicine, explained more about what chronic non-allergic rhinosinusitis is, how it’s different from other sinus problems, the symptoms to watch for and what can help you feel better.
What “chronic non-allergic rhinosinusitis” means
“Chronic non-allergic rhinosinusitis is a long-term inflammation of the nose and sinuses,” Dr. Chang said.
The name sounds complicated. It helps to break it down:
- Chronic: Symptoms last for more than 12 weeks
- Non-allergic: Symptoms are not triggered by allergens like pollen, dust or pet dander
- Rhinosinusitis: inflammation happens in the nose and sinuses
It’s more common than many people realize and is often misunderstood or misdiagnosed.
How this differs from other sinus problems
Not all sinus issues are the same, even though they can have similar symptoms.
- Allergy-related chronic rhinosinusitis is triggered by allergens. You usually feel better when you take allergy medications.
- Acute sinus infections only last a short time. You may have fever, thick nasal drainage and pain.
- Non-allergic rhinosinusitis is when you have inflammation that’s not caused by allergies or an infection.
The key difference is what causes the inflammation. “Unlike typical sinus or allergy problems, allergy testing is usually negative and antibiotics don’t help,” Dr. Chang said.
“Also, chronic non-allergic rhinosinusitis commonly overlaps with vasomotor rhinitis, which is a condition where the nasal lining is overly sensitive and reacts to everyday triggers rather than allergens,” Dr. Chang said.
Common causes and triggers
Factors like these can contribute to non-allergic sinus inflammation:
- Irritants such as air pollution, cigarette smoke, strong odors, dry air and weather changes
- Hormonal shifts
- Overusing nasal decongestant sprays
- Structural issues, like a deviated septum or narrow sinus passages
- Long-term exposure to irritants like workplace fumes or poor indoor air quality
- Gastroesophageal reflux, where stomach acid irritates nasal and sinus tissues
- Less common conditions, like atrophic rhinitis or other non-allergic nasal disorders
More than one of these factors could be causing your symptoms.
Typical symptoms to watch for
“People with this condition often feel persistently congested or ‘stuffy,’” Dr. Chang said.
Other symptoms may include:
- Facial pressure or a feeling of fullness in the face
- Postnasal drip
- Runny nose
- Headaches
- Reduced sense of smell or taste
- Symptoms that continue despite allergy medications
- Symptoms that never fully clear up
“Most people don’t have itching or sneezing with chronic non-allergic rhinosinusitis,” Dr. Chang said.
When to consider a medical evaluation
“Many people find relief with simple at-home measures like saline nasal sprays or rinses, humidifiers, staying hydrated and avoiding known irritants,” Dr. Chang said.
It may be time to see a provider if:
- Symptoms lasting longer than 12 weeks deserve a closer look, even if they don’t feel severe
- You can’t identify clear allergy triggers
- Symptoms interfere with your sleep, focus or daily life
- Allergy treatments haven’t helped
How doctors diagnose non-allergic sinus inflammation
Diagnosis can help figure out what’s causing inflammation and rule out other causes. It usually starts with a detailed review of your symptoms.
A provider may:
- Review your medical history and possible triggers
- Perform a physical exam of your nose and sinuses
- Use nasal endoscopy to look inside your nasal passages
- Rule out allergies or infection
- Recommend imaging, such as a CT scan, in some cases
Treatment approaches
Treatment focuses on reducing inflammation and avoiding triggers rather than treating allergies with shots or antihistamines.
Options may include:
- Environmental changes, such as improving air quality or avoiding irritants
- Saline nasal sprays or rinses to keep passages clear
- Medications, including nasal steroid sprays, other anti-inflammatory treatments or medications that can calm overactive nasal nerves
- Referral to an ear, nose and throat (ENT) specialist for persistent or structural issues
“In some cases, surgical options can help, especially when structural issues contribute to symptoms,” Dr. Chang said.
These may include:
- Septoplasty to correct a deviated septum
- Inferior turbinate reduction to reduce chronic swelling
- Posterior nasal nerve radiofrequency treatment, which can be especially helpful for vasomotor rhinitis
When chronic sinus care overlaps with other specialties
Care may involve more than one provider:
- Allergy specialists, if you also have allergies
- ENT specialists, for structural concerns, ongoing symptoms or surgical solutions
- Primary care providers, to coordinate evaluation and next steps
“Care is often most effective when specialists work together,” Dr. Chang said.
Take the next step
If your sinus symptoms don’t ease up and they don’t seem to be caused by allergies, a primary care provider or ENT specialist can help pinpoint the reason and recommend care. Reach out to a Banner Health provider to find long-term relief.
